Radiator.



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RADIATOR.

APPLIOATION Hmm MAY 11, 19o7.

2 SHEETS-SHEET 1.

No. 898,238. PATENTED SEPT. 8, 1908. J. B. LONG & F. TODD.

RADIATOR.

APPLIoATIoN FILED MAY 11, 1907.

2 SHEETS-SHEET 2.

UNITED sTATEs DATENT oEEioE.

JOSEPH B. LONG AND FRANK TODD, OF CHICAGO, ILLINOIS; SAID TODD ASSIGNORVTO SAID LONG.

RADIATOR.

Specification of Letters Patent.

Patented sept. s, 190s.

To all whom it may concern:

Be it known that we, JOSEPH B. Lo'Ne and FRANK TODD, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Radiators, of which the following is a specification. The present invention relates to radiators of the class particularly adapted for use on automobiles, but which are also adapted for use wherever it is desired to radiate'or absorb heat for heating or cooling purposes.

The object of the invention is to provide a radiator of improved construction and the invention consists in the features of novelty that are hereinafter described with reference to the accompanying drawing, which is rnade a part of this specification and in which:

- Figure 1 is a conventionalized front elevation of a radiator embodying the invention in its preferred form. Fig. 2 is a view onan enlarged scale, of a portion thereof partly in front elevation andpartly in vertical section in a plane parallel with the front of the radiator and cutting the tubes. Fig. 3 is a horizontal section thereof inthe planes indicated by the line 5 3, Fig. 2. Figs. 4 and 5 are fragmentary views showing two modifications. Fig. 6 is a perspective view. of a portion of one of the corrugated strips. Fig. 7 isla view similar to Fig. 6 showing a modification.

The radiator consists of a suitable frame having headers A and B, a plurality of tubes C, the opposite ends of which are in internal communication with the headers, in customary manner, and a plurality of strips, D, of sheet metal, arranged between the tubes, lengthwise thereof, and provided with transverse flutes or corrugations, the summits of which are in heat-conducting contact with the tubes. The tubes have flat sides and are arranged with their flat sides parallel wit-h the direction of the air currents that pass through the radiator and preferably vertical. Preferably all of the strips are alike and each has a series of flutes or corruextend beyond the front (or rear) sides of the tubes, as shown at d and at these rojecting portions the summits of the flutes IB project, as shown at d', bteyond the summits of the portions in rear thereof to the extent of onealf the thickness of the tube, so that when two strips are in proper positions upon opposite sides of a tube the projecting summits d/ of the-flutes D in the extended por-v tions of the strips Will come together, as shown in Figs. '1, 2, 3, 4 and 6. One advantage of this is that in the completed radiator the extended portions of the strips obscure the view of the tubes and by bringing the summits of their flutes together a symmetrical geometrical design, resembling a honeycomb in appearance, results. Another advantage is that the parts are additionally braced against each other and the rigidity of the structure thereby increased and still another advantage is that the shoulders, resulting from the projecting summits of the flutes coperate with the tubes and form stops or gages which assist in the exact assembling of the arts, to the end that the front edges of al of the strips shall be perfectly flush. Still another advantage is that the tubes are protected.

The summits of all the flutes on the other side of each strip contact with the summits of corresponding flutes on an adjacent strip, two strips, in the preferred form of the invention, bemg arranged between each two adjacent tubes. The summits of the flutes D2 are of V-shape and the summits of the flutes D3 are bent to form outwardly presented' V-shaped grooves, and these two forms of flutes alternate, throughout the entire length of the strip. In assembling the parts, two strips are placed together with the summits of the flutes D2 of one strip engaging the grooves in the summits of the flutes D3 of the other strip, and while held in these relations the two strips are slipped in, from the front of the radiator, between two adjacent tubesuntil their shoulders d" resulting from the projecting summits d engage the front-sides of the tubes. This operation isv .repeated until the full complement of strips is in place and then the strips and tubes ma be secured together by complete or parta immersion in a solder bath, or they may be soldered by hand as the strips are put in place.

The advantages in providing the strips with flutes having interengaging features are l*that they increase the rigidity of the strucv ture, and, which is of great 1mportance, they greatly facilitate the holding of the stri s in proper relations to each other in assem ling the parts. Preferably these interengaging features are similar on both strips, and the dissimilar features alternate on each strip, because this enables all of the strips to be made by one set of dies; it avoids the necessit for selecting two dissimilar strips for eacll pair in assembling the parts; and in the completed structure the appearance is more symmetrical. We desire to have it understood, however, that all of the flutes similar to the flutes D2 may be made on one stri and all of the flutes similar to the flutes D3 may be made on the other strips, as shown at d2 and d3 in Fig. 5.

In the preferred form of the invention,

above described, two strips D are arranged' between adjacent tubes, but if desired but a single strip may be used, as shown in Fig. 4. In this case the flutes on both sides of the strip will be like the flutes D.

It should be noted that the tubes do not pass through the radiating strips and this is the strips on one or both sides of it, and this j and a plurality of strips o will give access to the tube, either for repairino it while still in lace, or for removing it.

lln the referred orm4 of the invention we use a sing e row of tubes extending from side to side of the radiator, but instead thereof we may use a plurality of rows of tubes, so arranged that the tubes ofthe several rows fall in longitudinal rows as shown at C in Fig. 7.

What we claim as new and desire to secure by Letters Patent is:

1. A radiator having a lurality of tubes and a plurality of strips of s eet metal having transverse vflutes or corru ations, a pair of said strips being arranged etween each two adjacent tubes, lengthwise thereof, with the flutes on the adjacent sides of each pair in contact with each other and the flutes on the remote sides o l each pair in contact with adjacent tubes, the lsummit of one of each two contacting flutes having a groove into which the summit of the other projects.

2. A radiator having a lurality of tubes sheet metal havand a plurality of strips of sheet metal, having transverse flutes. or corrugations, arranged between the tubes, lengthwise thereof, and having portions extended beyond the tubes, the flutes in the extended portion of the two strips on opposite sides of each tube being high and in contact with each other and the flutes in the remaining portion of said strips being low and in contact with the sides of the tube, the lower portions of the flutes extending from the higher portions quite to the opposite sides of the strips whereby the strips may be inserted or removed while the tubes are in place.

4. A radiator having a plurality of tubes and a plurality of strips of sheet metal having transverse flutes or corrugations, a pair of said strips being arranged between each two adjacent tubes, lengthwise thereof, and having portions extendingl beyond the tubes, the summits of the flutes on adjacent sides of the strips of each pair being in contact witheach other and the summits of the flutes on the remote sides of the strips of each pair bein higher in the extended portions than in t e remaining portions of said strips, whereby the summits of the flutes in the extended portions of the two strips arranged on opposite sides of. each tube contact with each other and the summits of the same flutes in the remaining portions of said strips contact with the sides of the tube, the lower portions of the flutes extending from the higher portions quite to the opposite edges of the strips, whereby the strips may be put in place or removed while the tubes are in place.

JOSEPHv B. LONG. FRANK TODD Witnesses: y

L. M. HOPKINS, B. A. WoLFE. 

